dmj

Just reimage it every day. It takes 2min. CRTL-ALT-BACKSPACE IIRC. Make sure the student gets an 'exam' profile to use for logon and disable their regular login and it will meet that spec.

Freeradius/Samba has been around for a loooong time and there's lots of info around because it's used a lot. it's also likely the stack used on embedded devices. I personally didn't find it too hard (freeradius user forums are useful) and I only run windows where we need to run windows applications.

This is the generic config that a lot of Universities use. https://docs.google.com/document/d/14LnsBznOw0w2fR7xgBJhzyWp1OztlKO6D5fws0XpjBI/edit I setup similar at a school I was at but it was a bit more homegrown. What errors are you seeing? Can you post your smb.conf and freeradius files?

I'm after some advice on remote/streaming for games. I got rid of my gaming rig years ago and now only have a macbook (home) and thinkpad (work, linux). There's some recent windows games that I'm itching to play but neither of my devices are suitable. I don't want to shell out on an expensive gaming rig so I'm thinking of hiring one. What would edugeeks recommend? I've had a look at geforce now which looks like it would fit the bill, but I'm not so keen on monthly subscriptions and want to keep the cost low but at the same time get the best experience I can. Are there other services people would recommend - Ideally pay per play with steam import. The alternative I was thinking of was spinning up a cloud VM with some hefty GPU but wondered if these would be suitable and what technology is best to use for streaming? Which cloud provider has the best GPU's available (UK) for this sort of thing and what vm series? I was intending to build it all out in terraform/ansible and can automate all the shutdowns/provisioning, but will use a service if it's cost effective or much better. requirements: Macos/Linux client. Steam games import. Low latency gaming. My internet connection is 300MB/s fibre.

It can't create the disk. Check the Azure storage account, permissions or quota on the subscription. Could also be something about the host (an additional disk etc) but looks more like an azure error (I've not done azure for a 18months now, luckily! so could be wrong. ) In general I've avoid 'lift and shift' if you can. It'll end up costing more than re-platforming.

victims of the scunthorpe effect

Probably the wrong question, if you are just following other schools are doing you'll always be 10-15 yrs behind the standards. I think it's good you've got outside advice, you should follow it. FWIW at my last school we didn't do this on wired networks (we did for wireless) but we did at the University that I worked for.

SRE/devops style automation for systems almost never falls into a school tech role - it should do but from my experience on this forum nobody seems to actually do it ( or all left schools for 60k+ jobs) Here's a checklist you can work to: https://github.com/bregman-arie/sre-checklist

As Steve said, check where your swap/page file is saving to, but the correct solution is to migrate to ZFS and save yourself the NTFS pain.

EdulinkOne is good for this sort of thing. I appreciate you didn't say so but I kinda inferred that you were talking about emails; you really shouldn't be considering sending by email, unless you are sending links to login to another system: email protocols are inherently insecure for what could be sensitive information.

There was a thread about this, where a MAT put a large procurement out to tender. They had a preferred partner and excluded one of the competitors for some arbitrary reason (cheaper less training to keep the incumbent) They got sued for not checking their facts: http://www.edugeek.net/forums/mis-systems/217972-disappointed-bidder-sues-mat-after-mis-tender-failure.html So my point really is that if you are going on a fact finding mission, then it's best to do that. Of course it's entirely likely the OP's NM has been told to cost up a 1:1 scheme, but doesn't want it implemented so sent the OP on a wild goose chase to make the costs as high as possible by excluding certain tech.

Like fact finding without finding out any actual facts...

And the kids can re-image the things themselves in 2min! That's such a win in my book.

I think it's fair to say that the (technology) industry is heavily *nix based especially with regards to hosting web applications/services. It's not necessarily mac based, but of course macos itself is *nix based so I see what you mean.

I was talking specifically about the point with regards to silicon valley

Don't think even that's true. saw a recent developer survey that put windows desktop on less than 50% marketshare for developers. (71,000 respondants) https://survey.stackoverflow.co/2022/#section-most-popular-technologies-operating-system

It was supposed to be a bit tongue in cheek, that Bromcom have a *lot* of form for suing companies at the drop of a hat.

make sure to add a section: "Risk of future litigation against school" and weight it highly. You can score bromcom highly against this one to make sure they get excluded.

Suitable - yes if you have the budget, technical expertise and an army of technicians to support it. practical - not so much. I introduced a 2000 Chromebooks to my school back in 2016 and the BYoD scheme is still running strong. There's no way we could have afforded to do that with Windows. The 100 windows machines we had took up enough time to account for 1000 chromebooks. Web page applications are just way more simple to deal with. Thought: You don't need windows for programming, you need an IDE and a runtime environment, the most popular IDE (vscode) is written in javascript (electron) and runs on pretty much anything, including a browser.

https://mosquitto.org/ is a widely used MQTT broker for self hosting which would scale. IoT core is the Amazon cloud equivalent: https://aws.amazon.com/iot-core/ I recently followed this energy monitoring project, and it has examples using IoT core. The code is available and should be fairly easy to add/adapt functionality for VoC/CO2 monitoring. https://savjee.be/blog/home-energy-monitor-v2/ https://github.com/Savjee/home-energy-monitor

Raspberry pi is probably a bit OTT for this sort of thing (plus they are quite hard to get hold of at the moment). It should be more than possible to use an ESP32/ESP8266/Arduino for this, send the results to an MQTT broker running onm a server and then publish/process from there.

Yeah it makes sense that it is a combination of things. I couldn't find a specific ethylene glycol electrochemical sensor, I guess the chemistry is too similar to other VOC's. The ultimate would be a double focusing mass spectrometer, but that would be a bit too expensive! Perhaps an infrared spectrum would work, that's sometimes used for perimeter analysis to warn of large scale chemical leaks again probably too pricey. It would be interesting to know how perfumes are detected on the verkadas. FWIW I'm not convinced by the inadmissible argument - the HT would search the student anyway to look for contraband and a sensor is really to inform the decision to search.

hmm, interesting. I wonder if they've got a specific sensor, maybe for ethylene glycol.

My guess would be an ESP32, a VOC sensor, a printed case and a some software which is all of about £15 in components

well, look into the issues I suggested then. Perhaps if you were actually monitoring the network you'd know the reason already.